Tank-heater.



{gal 612,565. Patented Apr. 23, mm.

c. T. McCARROLL. TANK HEATER.

1Applicati0n filed Nov. 28, 1900.)

(H Ioiol.)

Wihyzsses M 6017 OZZ; lgaeljlar,

LZ C s & E at E 6. u lfiergz ys THK NDHRIS PETERS CO PNOTDJJTNOWASNINGYUN D C UNITED STATES PATENT CHARLES T. MCCARROLL, OF OT'IUMWA,IOWA.

TANK-H EATER.

SPECIFICATION formingpart of Letters Patent No. 672,565, dated April 23,1901.

Application filed November 28,1900. iaerial Nou 38,046. (No model.)

i To all whom it may concern.

Be ittknown that I, CHARLES T. MCCAR- ROLL, a citizen of the UnitedStates, residing at Ottumwa, in the county of Wapello and Stateof Iowa,have invented a new and use- .ful Tank-Heater, of which the following isa This invention for its object to provide an improved tankheater whichis applicable to any ordinary water or feed tank for heating thecontents 1 thereof. It is furthermore designed to secure a powerfuldraft for the fire and to have the draft under control, so asto regulatethe burning of the fuel.

With these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accom panying drawings,and particularlypointed out'in the appended claims, it being understood that changes inthe. form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention; 1

In the drawings, Figure l is a perspective 1 View of the improved heaterwithin a tank,

the latter being broken away. Fig. 2 is a central longitudinal sectionalview thereof. Fig.

' 3 is a detail perspective. View of the draft-regthe heater, there isprovided one or more rods 3, each of which .passes downwardly through ia pair of perforate ears 4, projecting outwardly from the heater, thelower end of the j i rod being received within a socket or recess in thebottom of the tank.

The open upper end of the heater is closed bymeans of a removable topplate 5, which has a pendent marginal rim or flange 6, which fitssnuglywithin the heater, so as to prevent lateral displacement thereof.At one side of the top plate there is provided a smoke-openrelates toheaters, and has ing 7, to which is removably fitted a smokepipe 8 ofsuitable length.

Opposite the smoke-opening there is provided a comparatively large andcircular draft-opening 9, having an upstanding marginal rim 10 for thesupport of an inverted conical draft-regulator 11, which projectsdownwardly into the interiorof the shell of the heater. The oppositeends of the draft-regulator are open, and the larger upper end isprovided with a pendent external marginal flange 12, which embraces therim l0 and rests upon the top of the heater. The upper end of theconical regulator is provided with a lid-or cover 13, having a centralhandle 14 and connected to the regulator by means of a suitable hinge15, so that the regulator may be opened and closed at will, whereby thecover forms a damper to control the draft through the conical tube.

For holding the lid at any desired angle there is provided a supporttherefor in the form of an inverted substantially U-shaped spring 16,which has its intermediate portion bent into a ring or eye 17, which isloosely engaged with a loop 18 upon the inner side of the lid, so as topivotally connect the spring to the lid. The opposite free ends of thespring extend downwardly Within the conical draft-tube and passoutwardly through corresponding openings 19 in opposite sides of saidtube, the latter having the opposite inwardly pressed or deflectedportions 20 at the lower sides of the opening, so that the end portionsof the spring may have substantially long frictional engagements withthe exterior of the draft-tube, whereby the lid 13 may be held at anydesired angle. The lower end of the tube is also provided with apluralityof perforations 21, so as to distribute the draft laterally aswell as downwardly.

It will be understood that the regulatortube is removable, so that fuelmay be inserted through the draft-opening in the top plate withoutremoving the latter. Also the tube is rotatably adjustable within thedraftopening, so as to dispose the upwardly-inclined lid in a positionto form a deflector for directing the external air or wind downwardlyinto the draft-tube. It is preferable to have an inverted conicaldraft-tube, as such a shape produces a blast, and thereby increases the7 end projected into the interior of the heater,

force of the draft, so as to send the latter conical draft-tubesupported upon the walls of the fuel-opening and having its smaller thewho also being removable outwardly through, the fuel-opening to permitof the introduction of fuel, and means for controlling the open outerend of the draft-tube.

= '3. A heater having a draft inlet in communication with the fire-potthereof, a tilting closure therefor, which is projected exterior] y ofthe heater whenopen and forms a deflector to A direct a draftinto theopening, and means for :opening, which is projected above the topofholding the tilting-closure open.

4.,A heater having a draft-opening in its top and in communication .withthe fire-pot thereof,'an upwardly-tilting closure for the the'heaterwhen open and forms a deflector to direct a draft into the opening, andmeans for holding the tilting closure open. I

5. A heater,havin g an open-ended inverted conical draft-tube extendingthrough the top of the heater and in'communication with the fire-potthereof, an upwardly-swinging closure for the upper end of the tube, theclosure being projected above the top of the heater when open andthereby forming a deflector to direct a draft into the tube, andadjustable means for supporting the closure in a plu-' rality of tiltedpositions to control the open outer end of the tube.

6. A tank-heater having a draftopening in the top thereof, anupwardly-tilting closure and deflector for the opening, and means foradjusting the angle of the combined closure and deflector.

in the opening, a tilting cover for the draftopening, and a pendentcover-support loosely connected to the cover and passing frictionallythrough an opening in the tube.

8. A tank-heater, having a draft-tube, a tilting cover therefor, and asubstantially U-shaped spring-support having its intermediate portionloosely connected to the cover, and its opposite free portions passingfrie tionally through opposite perforations in the tube.

9. A tan k-heater, having a draft-openingin the top thereof, anupstanding marginal rim surrounding the opening, an inverted conicaldraft-tube, having an upper external pend ent marginal flange embracingthe upstanding rim, a cover hinged to the tube, and an invertedsubstantially U-shaped spring-support, having its intermediate; partpivotally connected to the under side of the cover, and

its opposite free end portions passingfrictionally through correspondingperforations in the tube.

10.. As a new article ofmanufacture, an in verted conical draft-tube forheaters, the upper and'largerend of the tube having a combined tiltingclosure and deflector-plateand means for adjusting the inclinationthereof.

, ll. As a new article of manufacture, a draft device for heaters,comprising an inverted conical tube, which is open at opposite ends, andprovided with an upper external marginal flange, a combined closure anddraft-deflector hinged to the top of the fube,and a substantiallyU-shaped spring-support loosely connected. to the cover and having itsopposite portions passing frictionally through openings in the tube.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

CHARLES T. MCCARROLL.

Witnesses:

O. B. OHILooTE, E. R. GARRETT.

